The first one I wrote is so bad...my grammer teacher would...nevermind. I guess you only have 5 min. to edit and I was out of time so plese excuse the above mess..lol
I have heard from other yorkie mums whom have lived with both males and females...that males are more protective and are always following (usually the adult female) around the house. Even if you just go to the bathroom they want to follow you to make sure you are okay. they will always sleep with one eye open (not literally

) to make sure they know where you are at all times. Whereas females don't follow when they don't want to, their girls! Females are more cuddley but I don't agree with that. Anyways, this is what I have heard and soon you may know the differences too. Also every dog has its own personality and there is ALWAYS an exception to the rule. good luck..let us know what you decide.
tina